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Regulators, Mounts Up!
Regulators, Mounts Up!
Transition

Transition Regulator SX Carbon Deore eMountain Bike in Stormshadow Grey

£6,999.00
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Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined
Earn Rewards
When you purchase this item, you will earn of rewards points to spend on your next purchase from us. You can spend your Rewards balance in-store & online.

Hassle free returns - please contact us if you need to return any item.

Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange.


To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

Several types of goods are exempt from being returned. Perishable goods such as food, flowers, newspapers or magazines cannot be returned. We also do not accept products that are intimate or sanitary goods, hazardous materials, or flammable liquids or gases.

Additional non-returnable items:
Gift cards
Downloadable software products
Some health and personal care items

To complete your return, we require a receipt or proof of purchase.

Please do not send your purchase back to the manufacturer.

There are certain situations where only partial refunds are granted: (if applicable)

Book with obvious signs of use
CD, DVD, VHS tape, software, video game, cassette tape, or vinyl record that has been opened.
Any item not in its original condition, is damaged or missing parts for reasons not due to our error.
Any item that is returned more than 30 days after delivery
Refunds (if applicable)

Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.

If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.

Late or missing refunds (if applicable)

If you haven’t received a refund yet, first check your bank account again. Then contact your credit card company, it may take some time before your refund is officially posted. Next contact your bank. There is often some processing time before a refund is posted.

If you’ve done all of this and you still have not received your refund yet, please contact us at [email protected].

Sale items (if applicable)

Only regular priced items may be refunded, unfortunately sale items cannot be refunded.

Exchanges (if applicable)

We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at [email protected] and send your item to: Forest Road, Hay on Wye, HR3 5EH, United Kingdom.

Gifts

If the item was marked as a gift when purchased and shipped directly to you, you’ll receive a gift credit for the value of your return. Once the returned item is received, a gift certificate will be mailed to you.

If the item wasn’t marked as a gift when purchased, or the gift giver had the order shipped to themselves to give to you later, we will send a refund to the gift giver and he will find out about your return.

Shipping

To return your product, you should mail your product to: Forest Road, Hay on Wye, HR3 5EH, United Kingdom.

You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.

Depending on where you live, the time it may take for your exchanged product to reach you, may vary.

Transition Regulator SX Carbon Deore eMountain Bike in Stormshadow Grey

Season:2025

Brand:Transition

Code:yrGyrGERD.BRC.XS.GER.52.B

The all-mountain steed is here to deliver fun on every trail.

The Regulator SX is Transition's all-mountain eMTB designed to provide a nimble and responsive ride. No trail is too tame or too gnarly for the dedicated mixed-wheel platform with 150 mm rear and 160 mm front travel and geometry that promotes agility and playfulness. The Regulator SX will be the choice for riders looking for a chassis that excels in a variety of terrain with the added assistance of a Bosch SX drive unit delivering 55 Nm of torque from a 400 Wh battery. Coupled with Transition's SBG geometry, you have an eMTB experience close to that of non-assisted bikes. This combination provides the best range-to-weight ratio for those who value lighter ride characteristics, giving you the best of both worlds with one of the most reliable and intuitive motor systems available on the market. For those looking for extra range, the Bosch range extender will take you up to 650 Wh for all day adventures.

Features:

  • 150/160 mm; Mixed Wheels
    The dedicated mixed-wheel platform with 150mm rear and 160mm front travel make the Regulator CX nimble and responsive while delivering powerful assistance for the steepest of climbs. With a 64.5 degree headtube angle and short, 27.5" wheel specific chainstays, Transition was able to make the Regulator one of the most manoeuvrable eMTBs we've ever ridden. This keeps the ride fun and engaging on everything from smooth flow trails to steep tech. A geo adjust chip in the lower shock mount allows riders to fine tune geo to their preferences.
  • High Power to Weight
    The Bosch CX system delivers the highest power-to-weight ratio possible. Perfect for riders who want lighter ride characteristics from their eMTB that excels in a wide variety of terrain. Complete builds come in at just over 47 lbs while still delivering 85 Nm of torque for powerful assistance.
  • Bosch Flow App
    For those looking to dig into the settings, the Bosch Flow app gives you full control and customization. Once paired with your Regulator, you can adjust the power level support and peak power from the convenience of your phone without any wires or a laptop.
  • Bosch Performance Line SX
    Powered by the Bosch Performance Line SX system, the Regulator gets the legendary reliability of Bosch in a lightweight package giving you 55 Nm of torque and 600 W peak power. While powerful, the system also provides an incredibly natural feel that delivers power without breaking traction, keeping your momentum and helping you clear technical trails.
  • Bosch 400 Wh Battery
    Enclosed low in the downtube is Bosch's 400 Wh battery. Perfect for local laps where you want the most manoeuvrable eMTB in the market.
  • Bosch PowerMore Range Extender
    Head into the backcountry with the additional 250wh range extender. Custom cable management keeps the connection clean and secure.
  • Display
    Easily control the power modes and view battery life via the wireless Mini Remote and slim System Controller top tube display. This minimal display keeps you focused on the trail ahead, while providing all the necessary info you need to keep riding. Giving you everything you need, and nothing you don't.
  • Clean Cable Routing
    Cable routing ports are compatible with 0, 1 or 2 cables and allow brakes to be run on either side.
  • Charge Port
    Transition's custom charge port houses two magnets to ensure it stays closed even on the rowdiest of descents.
    The door easily stays open for charging sessions or installing the range extender.
  • Integrated Protection
    Large hollow lugs on the chainstay protector keep chain-slap to a minimum while protecting the frame.
    A pre-installed mud-guard keeps dirt and grime out of the main pivot area.
  • Integrated Chain Guide
    Designed in-house, Transition's pre-installed chain-guide ensures you never miss a pedal stroke.
Technical Information
  • Frame
    Regulator SX Carbon 150 mm
  • Wheel size
    Mixed
  • Drive unit
    Bosch Performance Line SX (BDU31)
  • Battery
    Bosch CompactTube (400 Wh)
  • Display
    Bosch System Controller
  • Assist switch
    Bosch Wireless Mini Remote
  • Rear shock
    RockShox SuperDeluxe Select (205 × 60 mm)
  • Fork
    RockShox Lyrik Base
  • Headset
    FSA No.57 E
  • Stem
    RaceFace Aefect R (40 mm)
  • Handlebar
    RaceFace Chester 35 SM (780 × 20) MD/LG/XL (780 × 35)
  • Grips
    ODI Elite Flow Lock-On
  • Saddle
    SDG Bel Air 3
  • Seatpost
    SDG Tellis SM (150 mm) MD (170 mm) LG (200 mm) XL (230 mm)
  • Brakes
    Shimano Deore M6120 4 Piston
  • Rotors
    Shimano RT66 (203 mm)
  • Shifter
    Shimano Deore M6100 iSpec EV
  • Derailleur
    Shimano Deore M6100 SGS 12 sp
  • Cassette
    Shimano Deore M6100 (10-51T)
  • Chain
    Shimano Deore M6100
  • Crank
    RaceFace Aeffect R E-MTB (160 mm)
  • Chainring
    E*Thirteen Helix Race Direct Mount (32T)
  • Chainguide
    Transition Integrated Top Guide
  • Rims
    WTB ST i30
  • Spokes
    Pillar Double Butted
  • Hubs
    Novatech D791 SB/D902 SB
  • Tyre/Front
    Maxxis Assegai 3 C EXO/TR (2.5)
  • Tyre/Rear
    Maxxis Minion DHRII 3 C EXO/TR (2.4)
  • Included
    Bosch Charger Tubeless Valves & Sealant
  • Color options
    Stormshadow Grey Madrone Gold
Sizing Information
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